CN104901420B - Remote transformer monitoring system based on mid-voltage carrier communication and monitoring method - Google Patents
Remote transformer monitoring system based on mid-voltage carrier communication and monitoring method Download PDFInfo
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- CN104901420B CN104901420B CN201510061719.0A CN201510061719A CN104901420B CN 104901420 B CN104901420 B CN 104901420B CN 201510061719 A CN201510061719 A CN 201510061719A CN 104901420 B CN104901420 B CN 104901420B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The invention discloses a remote transformer monitoring system based on mid-voltage carrier communication and a monitoring method. The monitoring system comprises a control center and a middle-high voltage-side monitoring module. A mid-voltage branch monitoring device is arranged for each mid-voltage branch. One phase of the mid-voltage branch is provided with a mid-voltage branch-side relay module, and the rest two phases of the mid-voltage branch are provided with a mid-voltage branch-side detection module respectively. Low-voltage three phases of the transformer are respectively provided with a transformer low voltage-side detection module respectively. The mid-voltage branch is a branch of a middle-high voltage cable. The transformer is connected onto the mid-voltage branch. Each mid-voltage transformer in the power grid can be remotely monitored, the monitored data can be automatically uploaded, and a large amount of manpower can be saved; and problems of power supply of a monitoring device and signal coupling of a high-voltage line can be solved via a high-voltage mutual inductance power taking device, and the wireless communication mode of an MCU control unit also solves the safety problem of the operation monitoring device in high-voltage environment.
Description
Technical field
The present invention relates to a kind of remote transformer control system based on medium-voltage carrier communication and monitoring method, carried by PLC
Wave communication mode realizes collection and the transmission of mesohigh electric power networks signal, belongs to control technique in power system.
Background technology
Conventional electric power network-based control and information gathering also rely primarily on and manually operate in a large number；Existing PLC power carrier
Although technology has had certain application, limited by inherent technology, transmission range is limited；And mesohigh equipment is general
Powered using battery, service life is limited；And for mesohigh equipment contact setting there is safety problem.
Content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of medium-voltage carrier that is based on to communicate
Remote transformer control system and monitoring method, using PLC carrier communication and wireless technology, realize signal on medium and high voltage power line
Transmission, be capable of automatic upload and the monitoring of electric power networks signal simultaneously, so that monitor in real time is carried out to grid equipment, be
A kind of for whole electric power networks from mesohigh to the signals collecting of voltage transmission and each branch road particular location fault overall solution
Certainly scheme, is capable of long-distance transmissions, solves the high safety of controlled in wireless mesohigh equipment and the permanent of mutual inductance electricity-fetching module
Powerup issue.
Technical scheme：For achieving the above object, the technical solution used in the present invention is：
A kind of remote transformer control system based on medium-voltage carrier communication, monitors mould including control centre and mesohigh side
Block, and press branch line monitoring device in each in pressure branch line setting one, in each, pressure branch line monitoring device includes one
An individual middle pressure line side trunk module, pressure line side detection module and three step down side detection modules in two, middle pressure is propped up
During wherein the one of line mutually arranges one, pressure props up line side trunk module, and the in addition biphase of middle pressure branch line is respectively provided with pressure branch line in
Side detection module, the low voltage three-phase of transformator is respectively provided with a step down side detection module；Middle pressure branch line is mesohigh
The branch line of cable, transformator is connected on middle pressure branch line；
Described step down side detection module includes low-pressure side faint sensing power taking unit, low-pressure side accumulator, transformation
Device low-pressure side control unit MCU and low-side sensor unit, the low-pressure side faint sensing low pressure three from transformator for the power taking unit
Mutually hold power taking and low-pressure side accumulator is charged, low-pressure side accumulator is powered for step down side detection module, low pressure
Side senser unit is acquired to the monitoring signals of step down side, step down side control unit MCU and low-pressure side
Sensor unit interacts；Step down side control unit MCU is wirelessly led to middle pressure line side trunk module
Letter；
Medium pressure props up that line side detection module includes medium voltage side faint sensing power taking unit, medium voltage side accumulator, middle pressure are propped up
Line side control unit MCU and medium voltage side sensor unit, medium voltage side faint sensing power taking unit therefrom presses sensing power taking on branch line
And accumulator is charged, accumulator is that middle pressure line side detection module is powered, and branch line is pressed in medium voltage side sensor unit centering
On monitoring signals be acquired, medium voltage side control unit MCU is interacted with medium voltage side sensor unit；Pressure in transformator
Line side control unit MCU is wirelessly communicated with middle pressure line side trunk module；
Medium pressure props up that line side trunk module includes a middle pressure line side mutual inductance power taking unit, middle pressure props up line side relay and control list
First MCU, medium voltage side sensor unit and middle pressure prop up line side PLC carrier communication unit, and middle pressure is propped up line side mutual inductance power taking unit hoop and connect
Middle pressure branch line is powered for a middle pressure line side trunk module by mutual inductance power taking, on medium voltage side sensor unit centering pressure branch line
Monitoring signals be acquired, medium voltage side relay control unit MCU and medium voltage side sensor unit interact, a middle pressure line side
PLC carrier communication unit is interacted with middle pressure line side relay control unit MCU；Middle pressure line side PLC carrier units pass through
Induction mode by communication carrier signal be coupled to middle pressure branch line on, simultaneously pass through induction mode by middle pressure branch line on opposite end carrier wave
Out, the gathered data of acquisition is loaded into middle pressure branch line, therefrom by middle pressure line side PLC carrier communication unit simultaneously for signal extraction
The control information of mesohigh side monitoring module is received on pressure branch line；
Described mesohigh side monitoring module include mesohigh side mutual inductance power taking unit, mesohigh side control unit MCU and in
High-pressure side PLC carrier communication unit, mesohigh side mutual inductance power taking unit hoop is connected on medium and high voltage cable line, by mutual inductance power taking is
Mesohigh side monitoring module is powered, and mesohigh side PLC carrier communication unit and mesohigh side control unit MCU interact；In
High-pressure side PLC carrier communication unit by induction mode, communication carrier signal is coupled on medium and high voltage cable line, passes through simultaneously
The carrier signal of opposite end on medium and high voltage cable line is extracted by induction mode；Mesohigh side control unit MCU passes through wireless parties
Formula is communicated with control centre；
Preferably, described low-side sensor unit includes current sensor and temperature sensor, wherein current sensor
The low voltage three-phase electric current of transformator is detected, the wiring column temperature of the low voltage three-phase cable to transformator for the temperature sensor is entered
Row detection；Medium pressure side senser unit includes current sensor, and this current sensor centering pressure branch line three-phase current is carried out
Detection.
Preferably, described wireless mode is WiFi mode, Zigbee mode or bluetooth approach.
The monitoring method of the above-mentioned remote transformer control system based on medium-voltage carrier communication, comprises the steps：
(1) mesohigh side mutual inductance power taking unit hoop is connected on medium and high voltage cable line, is mesohigh side by mutual inductance power taking
Monitoring module is powered；Middle pressure line side mutual inductance power taking unit hoop is connected on middle pressure branch line, is middle pressure branch line by mutual inductance power taking
Side trunk module is powered；The power supply of middle pressure line side detection module is by the medium voltage side faint sensing power taking unit of each branch line and middle pressure
Side storage battery power supply；The power supply of step down side detection module is by low-pressure side faint sensing power taking unit and low-pressure side accumulator
Power supply；
(2) heart completes the setting of relevant parameter in the controlling, is sent to mesohigh side monitoring module by wireless network, then
Middle pressure line side trunk module is sent to by medium and high voltage cable line and middle pressure branch line, is sent to middle pressure finally by wireless network
Prop up line side detection module and step down side detection module, with：Completed to correspondence by step down side control unit MCU
The setting of low-side sensor unit, is completed to corresponding medium voltage side sensor unit by middle pressure line side control unit MCU
Setting, completes centering by middle pressure line side relay control unit MCU and presses side senser unit and middle pressure to prop up line side PLC carrier wave and lead to
The setting of letter unit, completes the setting of centering high-pressure side PLC carrier communication unit by mesohigh side control unit MCU；
(3) be each mesohigh side PLC carrier communication unit and each middle pressure line side PLC carrier communication unit distributes one only
One corresponding device address number, control centre and mesohigh side monitoring module confirm coming of feedback information according to device address number
Source, according to device address number, step down side detection module bag confirms whether control instruction is directed to oneself；
(4) control instruction is passed sequentially through wireless network, mesohigh side control unit MCU, mesohigh side PLC by control centre
Carrier communication unit, medium and high voltage cable line, middle pressure branch line and middle pressure are propped up line side PLC carrier communication unit and are sent to middle pressure line side
Relay control unit MCU, middle pressure is propped up line side relay control unit MCU and is confirmed whether comprise pressure line side in this in control instruction
The device address number of PLC carrier communication unit：If not comprising, continue waiting for；If comprising, propped up by wireless network, middle pressure
Line side control unit MCU and step down side control unit MCU transmit control instruction to corresponding sensor unit, each sensing
After device unit is according to control instruction data acquisition, then pass sequentially through pressure in corresponding step down side control unit MCU/
Prop up line side control unit MCU, wireless network, middle pressure props up line side relay control unit MCU, middle pressure props up line side PLC carrier communication list
First, middle pressure branch line, medium and high voltage cable line, mesohigh side PLC carrier communication unit, mesohigh side control unit MCU and wireless network
Network, to control centre's feedback information, completes a data acquisition；
(5) control centre is regulated and controled to all the sensors unit by poll, random, probability or the method specified；
(6) control centre is provided with the time limit of feedback information, if sensor unit does not have feedback letter within the time limit of regulation
Breath, then judge that corresponding communication line has communication equipment fault, in conjunction with other communication line situations, failure judgement position；
(7) control centre is provided with alarm judging unit, and control centre judges according to feedback information and alarm judging unit
Whether there is grid equipment fault, in conjunction with other communication line situations, failure judgement position on corresponding communication line.
Beneficial effect：A kind of remote transformer control system based on medium-voltage carrier communication and monitoring side that the present invention provides
Method, can carry out remote monitoring to each transformator in electrical network, and Monitoring Data can upload automatically, save a large amount of
Manually；And solve the problems, such as that monitoring device is powered by high pressure mutual inductance power taking equipment, the communication of MCU control unit
Also solve the safety issue operating monitoring device under environment under high pressure.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the mounting structure schematic diagram of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is further described.
As shown in Figure 1 and Figure 2 be a kind of remote transformer control system based on medium-voltage carrier communication, include control centre with
Mesohigh side monitoring module, and press branch line monitoring device in each in pressure branch line setting one, press branch line in each
Monitoring device includes in one a pressure line side trunk module, pressure line side detection module and three step down sides inspections in two
Survey module, a wherein one mutually pressure line side trunk module in setting one of middle pressure branch line, the in addition biphase of middle pressure branch line sets respectively
Put pressure line side detection module in, the low voltage three-phase of transformator is respectively provided with a step down side detection module；In
Pressure branch line is the branch line of medium and high voltage cable line, and transformator is connected on middle pressure branch line；
Described step down side detection module includes low-pressure side faint sensing power taking unit, low-pressure side accumulator, transformation
Device low-pressure side control unit MCU and low-side sensor unit, the low-pressure side faint sensing low pressure three from transformator for the power taking unit
Mutually hold power taking and low-pressure side accumulator is charged, low-pressure side accumulator is powered for step down side detection module, low pressure
Side senser unit is acquired to the monitoring signals of step down side, step down side control unit MCU and low-pressure side
Sensor unit interacts；Step down side control unit MCU is wirelessly led to middle pressure line side trunk module
Letter；
Medium pressure props up that line side detection module includes medium voltage side faint sensing power taking unit, medium voltage side accumulator, middle pressure are propped up
Line side control unit MCU and medium voltage side sensor unit, medium voltage side faint sensing power taking unit therefrom presses sensing power taking on branch line
And accumulator is charged, accumulator is that middle pressure line side detection module is powered, and branch line is pressed in medium voltage side sensor unit centering
On monitoring signals be acquired, medium voltage side control unit MCU is interacted with medium voltage side sensor unit；Pressure in transformator
Line side control unit MCU is wirelessly communicated with middle pressure line side trunk module；
Medium pressure props up that line side trunk module includes a middle pressure line side mutual inductance power taking unit, middle pressure props up line side relay and control list
First MCU, medium voltage side sensor unit and middle pressure prop up line side PLC carrier communication unit, and middle pressure is propped up line side mutual inductance power taking unit hoop and connect
Middle pressure branch line is powered for a middle pressure line side trunk module by mutual inductance power taking, on medium voltage side sensor unit centering pressure branch line
Monitoring signals be acquired, medium voltage side relay control unit MCU and medium voltage side sensor unit interact, a middle pressure line side
PLC carrier communication unit is interacted with middle pressure line side relay control unit MCU；Middle pressure line side PLC carrier units pass through
Induction mode by communication carrier signal be coupled to middle pressure branch line on, simultaneously pass through induction mode by middle pressure branch line on opposite end carrier wave
Out, the gathered data of acquisition is loaded into middle pressure branch line, therefrom by middle pressure line side PLC carrier communication unit simultaneously for signal extraction
The control information of mesohigh side monitoring module is received on pressure branch line；
Described mesohigh side monitoring module include mesohigh side mutual inductance power taking unit, mesohigh side control unit MCU and in
High-pressure side PLC carrier communication unit, mesohigh side mutual inductance power taking unit hoop is connected on medium and high voltage cable line, by mutual inductance power taking is
Mesohigh side monitoring module is powered, and mesohigh side PLC carrier communication unit and mesohigh side control unit MCU interact；In
High-pressure side PLC carrier communication unit by induction mode, communication carrier signal is coupled on medium and high voltage cable line, passes through simultaneously
The carrier signal of opposite end on medium and high voltage cable line is extracted by induction mode；Mesohigh side control unit MCU passes through wireless parties
Formula is communicated with control centre；
Described low-side sensor unit includes current sensor and temperature sensor, and wherein current sensor is to transformator
Low voltage three-phase electric current detected, the wiring column temperature of the low voltage three-phase cable to transformator for the temperature sensor detects；
Medium pressure side senser unit includes current sensor, and this current sensor centering pressure branch line three-phase current is detected.
Described wireless mode is WiFi mode, Zigbee mode or bluetooth approach.
The monitoring method of the above-mentioned remote transformer control system based on medium-voltage carrier communication, comprises the steps：
(1) mesohigh side mutual inductance power taking unit hoop is connected on medium and high voltage cable line, is mesohigh side by mutual inductance power taking
Monitoring module is powered；Middle pressure line side mutual inductance power taking unit hoop is connected on middle pressure branch line, is middle pressure branch line by mutual inductance power taking
Side trunk module is powered；The power supply of middle pressure line side detection module is by the medium voltage side faint sensing power taking unit of each branch line and middle pressure
Side storage battery power supply；The power supply of step down side detection module is by low-pressure side faint sensing power taking unit and low-pressure side accumulator
Power supply；
(2) heart completes the setting of relevant parameter in the controlling, is sent to mesohigh side monitoring module by wireless network, then
Middle pressure line side trunk module is sent to by medium and high voltage cable line and middle pressure branch line, is sent to middle pressure finally by wireless network
Prop up line side detection module and step down side detection module, with：Completed to correspondence by step down side control unit MCU
The setting of low-side sensor unit, is completed to corresponding medium voltage side sensor unit by middle pressure line side control unit MCU
Setting, completes centering by middle pressure line side relay control unit MCU and presses side senser unit and middle pressure to prop up line side PLC carrier wave and lead to
The setting of letter unit, completes the setting of centering high-pressure side PLC carrier communication unit by mesohigh side control unit MCU；
(3) be each mesohigh side PLC carrier communication unit and each middle pressure line side PLC carrier communication unit distributes one only
One corresponding device address number, control centre and mesohigh side monitoring module confirm coming of feedback information according to device address number
Source, according to device address number, step down side detection module bag confirms whether control instruction is directed to oneself；
(4) control instruction is passed sequentially through wireless network, mesohigh side control unit MCU, mesohigh side PLC by control centre
Carrier communication unit, medium and high voltage cable line, middle pressure branch line and middle pressure are propped up line side PLC carrier communication unit and are sent to middle pressure line side
Relay control unit MCU, middle pressure is propped up line side relay control unit MCU and is confirmed whether comprise pressure line side in this in control instruction
The device address number of PLC carrier communication unit：If not comprising, continue waiting for；If comprising, propped up by wireless network, middle pressure
Line side control unit MCU and step down side control unit MCU transmit control instruction to corresponding sensor unit, each sensing
After device unit is according to control instruction data acquisition, then pass sequentially through pressure in corresponding step down side control unit MCU/
Prop up line side control unit MCU, wireless network, middle pressure props up line side relay control unit MCU, middle pressure props up line side PLC carrier communication list
First, middle pressure branch line, medium and high voltage cable line, mesohigh side PLC carrier communication unit, mesohigh side control unit MCU and wireless network
Network, to control centre's feedback information, completes a data acquisition；
(5) control centre is regulated and controled to all the sensors unit by poll, random, probability or the method specified；
(6) control centre is provided with the time limit of feedback information, if sensor unit does not have feedback letter within the time limit of regulation
Breath, then judge that corresponding communication line has communication equipment fault, in conjunction with other communication line situations, failure judgement position；
(7) control centre is provided with alarm judging unit, and control centre judges according to feedback information and alarm judging unit
Whether there is grid equipment fault, in conjunction with other communication line situations, failure judgement position on corresponding communication line.
The above be only the preferred embodiment of the present invention it should be pointed out that：Ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of remote transformer control system based on medium-voltage carrier communication it is characterised in that：Including control centre and mesohigh
Side monitoring module, and press branch line monitoring device in each in pressure branch line setting one, pressure branch line monitoring dress in each
Put and detect moulds including pressure line side detection module in a pressure line side trunk module in, two and three step down sides
Block, a wherein one mutually pressure line side trunk module in setting one of middle pressure branch line, the in addition biphase of middle pressure branch line is respectively provided with one
Individual middle pressure line side detection module, the low voltage three-phase of transformator is respectively provided with a step down side detection module；Middle pressure
Line is the branch line of medium and high voltage cable line, and transformator is connected on middle pressure branch line；
It is low that described step down side detection module includes low-pressure side faint sensing power taking unit, low-pressure side accumulator, transformator
Pressure side control unit MCU and low-side sensor unit, the low-pressure side faint sensing low voltage three-phase end from transformator for the power taking unit
Power taking is simultaneously charged to low-pressure side accumulator, and low-pressure side accumulator is powered for step down side detection module, and low-pressure side passes
Sensor cell is acquired to the monitoring signals of step down side, and step down side control unit MCU is sensed with low-pressure side
Device unit interacts；Step down side control unit MCU is wirelessly communicated with middle pressure line side trunk module；
Medium pressure props up that line side detection module includes medium voltage side faint sensing power taking unit, medium voltage side accumulator, middle pressure prop up line side
Control unit MCU and medium voltage side sensor unit, medium voltage side faint sensing power taking unit therefrom presses on branch line sensing power taking right
Accumulator is charged, and accumulator is that middle pressure line side detection module is powered, on medium voltage side sensor unit centering pressure branch line
Monitoring signals are acquired, and middle pressure line side control unit MCU is interacted with medium voltage side sensor unit；The line side control of middle pressure
Unit MCU processed is wirelessly communicated with middle pressure line side trunk module；
Medium pressure props up that line side trunk module includes a middle pressure line side mutual inductance power taking unit, middle pressure props up line side relay control unit
MCU, medium voltage side sensor unit and middle pressure prop up line side PLC carrier communication unit, and middle pressure is propped up line side mutual inductance power taking unit hoop and is connected on
Powered for a middle pressure line side trunk module by mutual inductance power taking on middle pressure branch line, on medium voltage side sensor unit centering pressure branch line
Monitoring signals are acquired, and middle pressure line side relay control unit MCU is interacted with medium voltage side sensor unit, middle pressure branch line
Side PLC carrier communication unit is interacted with middle pressure line side relay control unit MCU；Middle pressure line side PLC carrier units lead to
Cross induction mode by communication carrier signal be coupled to middle pressure branch line on, simultaneously pass through induction mode by middle pressure branch line on opposite end load
Out, the gathered data of acquisition is loaded into middle pressure branch line by a middle pressure line side PLC carrier communication unit for ripple signal extraction, simultaneously from
The control information of mesohigh side monitoring module is received on middle pressure branch line；
Described mesohigh side monitoring module includes mesohigh side mutual inductance power taking unit, mesohigh side control unit MCU and mesohigh
Side PLC carrier communication unit, mesohigh side mutual inductance power taking unit hoop is connected on medium and high voltage cable line, is middle height by mutual inductance power taking
Pressure side monitoring module is powered, and mesohigh side PLC carrier communication unit and mesohigh side control unit MCU interact；Mesohigh
Side PLC carrier communication unit by induction mode, communication carrier signal is coupled on medium and high voltage cable line, passes through sensing simultaneously
The carrier signal of opposite end on medium and high voltage cable line is extracted by mode；Mesohigh side control unit MCU wirelessly with
Control centre communicates.
2. the remote transformer control system based on medium-voltage carrier communication according to claim 1 it is characterised in that：Described low
Pressure side senser unit includes current sensor and temperature sensor, wherein the low voltage three-phase electric current to transformator for the current sensor
Detected, the wiring column temperature of the low voltage three-phase cable to transformator for the temperature sensor detects；Medium pressure side senses
Device unit includes current sensor, and this current sensor centering pressure branch line three-phase current is detected.
3. the remote transformer control system based on medium-voltage carrier communication according to claim 1 it is characterised in that：Described nothing
Line mode is WiFi mode, Zigbee mode or bluetooth approach.
4. the monitoring method of the remote transformer control system based on medium-voltage carrier communication according to claim 1, its feature
It is：Comprise the steps：
(1) mesohigh side mutual inductance power taking unit hoop is connected on medium and high voltage cable line, is monitored for mesohigh side by mutual inductance power taking
Module for power supply；Middle pressure line side mutual inductance power taking unit hoop is connected on middle pressure branch line, is in middle pressure line side by mutual inductance power taking
Continue module for power supply；The power supply of middle pressure line side detection module is stored by the medium voltage side faint sensing power taking unit of each branch line and medium voltage side
Battery is powered；The power supply of step down side detection module is supplied by low-pressure side faint sensing power taking unit and low-pressure side accumulator
Electricity；
(2) heart completes the setting of relevant parameter in the controlling, is sent to mesohigh side monitoring module by wireless network, then passes through
Medium and high voltage cable line and middle pressure branch line are sent to middle pressure line side trunk module, are sent to middle pressure branch line finally by wireless network
Side detection module and step down side detection module, to be completed to corresponding low pressure by step down side control unit MCU
The setting of side senser unit, completes the setting to corresponding medium voltage side sensor unit by middle pressure line side control unit MCU,
Completing centering by middle pressure line side relay control unit MCU presses side senser unit and middle pressure to prop up line side PLC carrier communication list
The setting of unit, completes the setting of centering high-pressure side PLC carrier communication unit by mesohigh side control unit MCU；
(3) be each mesohigh side PLC carrier communication unit and each middle pressure line side PLC carrier communication unit distribution one is uniquely right
The device address number answered, control centre and mesohigh side monitoring module confirm the source of feedback information according to device address number, become
According to device address number, depressor low-pressure side detection module bag confirms whether control instruction is directed to oneself；
(4) control instruction is passed sequentially through wireless network, mesohigh side control unit MCU, mesohigh side PLC carrier wave by control centre
Communication unit, medium and high voltage cable line, middle pressure branch line and middle pressure are propped up line side PLC carrier communication unit and are sent to middle pressure line side relaying
Control unit MCU, middle pressure is propped up line side relay control unit MCU and is confirmed that whether comprising pressure line side PLC in this in control instruction carries
The device address number of wave communication unit：If not comprising, continue waiting for；If comprising, line side is propped up by wireless network, middle pressure
Control unit MCU and step down side control unit MCU transmit control instruction, each sensor list to corresponding sensor unit
After unit is according to control instruction data acquisition, then pass sequentially through pressure branch line in corresponding step down side control unit MCU/
Side control unit MCU, wireless network, middle pressure prop up line side relay control unit MCU, middle pressure props up line side PLC carrier communication unit, in
Pressure branch line, medium and high voltage cable line, mesohigh side PLC carrier communication unit, mesohigh side control unit MCU and wireless network are to control
Center processed feedback information, completes a data acquisition；
(5) control centre is regulated and controled to all the sensors unit by poll, random, probability or the method specified；
(6) control centre is provided with the time limit of feedback information, if sensor unit does not have feedback information within the time limit of regulation,
Judge that corresponding communication line has communication equipment fault, in conjunction with other communication line situations, failure judgement position；
(7) control centre is provided with alarm judging unit, and control centre judges corresponding according to feedback information and alarm judging unit
Whether there is grid equipment fault, in conjunction with other communication line situations, failure judgement position on communication line.
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| CN201510061719.0A CN104901420B (en) | 2015-02-05 | 2015-02-05 | Remote transformer monitoring system based on mid-voltage carrier communication and monitoring method |
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| CN201510061719.0A CN104901420B (en) | 2015-02-05 | 2015-02-05 | Remote transformer monitoring system based on mid-voltage carrier communication and monitoring method |
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| CN104901420B true CN104901420B (en) | 2017-02-22 |
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| CN106849354B (en) * | 2017-01-26 | 2019-11-26 | 南京陇源汇能电力科技有限公司 | The method for diagnosing faults of power distribution network in a kind of distribution system |
| CN107623534B (en) * | 2017-08-25 | 2021-08-24 | 国网辽宁省电力有限公司 | Power monitoring system and method for remote area |
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| JP2011259522A (en) * | 2010-06-04 | 2011-12-22 | Panasonic Electric Works Co Ltd | Remote meter reading system and switch control apparatus |
| CN102497030A (en) * | 2011-12-28 | 2012-06-13 | 山东电力研究院 | Line-loss actual-measurement and positioning method based on high-voltage electric energy meter and system thereof |
| CN102981043A (en) * | 2012-12-07 | 2013-03-20 | 辽宁省电力有限公司检修分公司 | Wireless digital monitor of electric power transmission and distribution line |
| CN104319895B (en) * | 2014-11-12 | 2018-08-10 | 国家电网公司 | A kind of Intelligent power distribution path monitoring terminal |
| CN204408019U (en) * | 2015-02-05 | 2015-06-17 | 江苏技睿通信科技有限公司 | A kind of transformer control system far away based on medium-voltage carrier communication |
-
2015
- 2015-02-05 CN CN201510061719.0A patent/CN104901420B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN104901420A (en) | 2015-09-09 |
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